SkyRenderer.java 文件源码

private void generateSky2()
{
    Tessellator tessellator = Tessellator.getInstance();
    BufferBuilder bufferBuilder = tessellator.getBuffer();

    if (this.sky2VBO != null)
    {
        this.sky2VBO.deleteGlBuffers();
    }

    if (this.glSkyList2 >= 0)
    {
        GLAllocation.deleteDisplayLists(this.glSkyList2);
        this.glSkyList2 = -1;
    }

    if (this.vboEnabled)
    {
        this.sky2VBO = new net.minecraft.client.renderer.vertex.VertexBuffer(this.vertexBufferFormat);
        this.renderSky(bufferBuilder, -16.0F, true);
        bufferBuilder.finishDrawing();
        bufferBuilder.reset();
        this.sky2VBO.bufferData(bufferBuilder.getByteBuffer());
    }
    else
    {
        this.glSkyList2 = GLAllocation.generateDisplayLists(1);
        GlStateManager.glNewList(this.glSkyList2, 4864);
        this.renderSky(bufferBuilder, -16.0F, true);
        tessellator.draw();
        GlStateManager.glEndList();
    }
}